What Documents Should I Prepare for Foreign-Exchange Transfers?

Prepare a clear paper trail that satisfies both your bank and Thai authorities. Start with standard IDs for you as the sender (passport or national ID) and the recipient’s name and bank details. Gather evidence of the source of funds (recent bank statements or a formal letter from your home bank) and the purpose of the transfer (e.g., property purchase) with a copy of the sale contract. You’ll usually need the exact recipient bank name, account number, SWIFT/BIC, and the transfer reference to match the contract. Note the currency you’re sending and whether you’re converting inside your home bank or in Thailand; keep records of the conversion rate used. Some banks require notes or a letter from your Thai lawyer confirming the transaction’s purpose. Do not split payments into multiple transfers if that would complicate registration or future repatriation. Keep all documentation and provide them to your lawyer and accountant for review. Rely on regulated banking channels and avoid last-minute instructions that leave documentary checks incomplete.